This isn’t voter fraud — he’s right, people can switch. While the rules vary from state to state, there are states where you can change your vote after it’s been cast.

Trump tried to make the case at a rally in Wisconsin Tuesday that voters should take heed of the FBI’s discovery of new emails that may be related to Clinton’s use of a private email server.

"A lot of things have happened over the last few days," Trump said. "This is a message for any Democratic voters who have already cast their ballots for Hillary Clinton and are having a bad case of buyers' remorse — in other words you want to change your vote — Wisconsin is one of several states where you can change your early ballot if you think you've made a mistake."

"A lot of stuff has come out since your vote," Trump continued.

In Wisconsin, you can swap out who you’re backing up to three times.

“Once you have been issued a ballot, whether at the polling place, at the clerk’s office or by mail, you can ask to spoil your ballot ... and get a new one in the event you make a mistake or change your mind. A voter can get up to three ballots. This has been the law in Wisconsin for many, many years,” the Wisconsin Elections Commission says.

In Pennsylvania — which does not have early voting but does have absentee voting — you can show up on election day and void your ballot and vote again, according to a spokeswoman from the Pennsylvania department of state.

"A Michigan voter who has cast an absentee ballot can get a new absentee ballot if they visit their local clerk’s office in person on or before 4 p.m., Monday, Nov. 7. The previous ballot will be spoiled," Fred Woodhams, a spokesman for the Michigan Department of State told USA TODAY.

You can also change your vote in Minnesota, Connecticut, New York and Mississippi, according to CNN.

And some people might be trying to. According to Google Trends, searches for “how do I change my vote?” have gone up 600% in the last week. Searches for the question have also hit an all-time high since 2004.

The top five states in searches for how to change votes during the past week are Florida, Arizona, Wisconsin, Louisiana and Tennessee.